You are here:

Collectibles--General (Modern)/Brown ceramic insulator


Brown insulator
Brown insulator  
My husband found this insulator when cleaning my moms property and we were wondering how old it is. I wiped off the imprint but can't tell if it's a 6 or a B. Could you tell me more about it? Thanks!

Hi Lauren,

The logo is actually a B inside of an O for Ohio Brass.  Ohio Brass was based out of Mansfield, OH and made porcelain insulators from shortly after the turn of the century into the 1960s.  This piece is a lower voltage power distribution insulator and should date from the 1950s.  These are pretty common with a $1 collector value or so - still a great piece of history!

         Hope this helps - Thanks, --Bob

Collectibles--General (Modern)

All Answers

Answers by Expert:

Ask Experts


Bob Berry


Questions related to collecting Glass Insulators and porcelain insulators - I can provide historical information as well as current collector values. I am also interested in purchasing insulators I need for my collection.


I have collected since the early 1970's and have much historical information, as well as knowledge of current insulator values.

National Insulator Association (

BS & MS in Electrical Engineering

©2017 All rights reserved.